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99824-63-2

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99824-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99824-63-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,2 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99824-63:
(7*9)+(6*9)+(5*8)+(4*2)+(3*4)+(2*6)+(1*3)=192
192 % 10 = 2
So 99824-63-2 is a valid CAS Registry Number.

99824-63-2Relevant articles and documents

Syntheses of (R)- and (S)-3-methylheptanoic acids

Zhang, Shunji,Shi, Yong,Tian, Weisheng

, p. 674 - 678 (2015)

Starting from chiral methyl molecules 3 and 4, both derived from (R)-4-methyl-δ-valerolactone, we have accomplished the synthesis of (R) and (S)-3-methylheptanoic acids. Our methods are amendable to the syntheses of a wide variety of chiral 3-methyl alkanoic acids. Both enantiomers of 3-methylheptanoic acid have been synthesized from chiral methyl molecules which were derived from (R)-4-methyl-δ-valerolactone (5). A wide variety of chiral 3-methyl alkanoic acids can also be synthesized by the methods described herein.

Regio- and stereochemical study of sex pheromone of pine sawfly; Diprion nipponica

Tai, Akira,Syouno, Emi,Tanaka, Kazuki,Fujita, Morifumi,Sugimura, Takashi,Higashiura, Yasutomo,Kakizaki, Masashi,Hara, Hideho,Naito, Tikahiko

, p. 111 - 121 (2007/10/03)

Regio- and stereoisomers of 1,2,ω-trimethyldecyl propionate (ω = 5-9) were prepared from stereochemically pure chiral building blocks as sex pheromone candidates of a pine sawfly; Diprion nipponica. Among the synthesized candidates, (1S,2R,8S)-1,2,8-trimethyldecyl propionate was found to be the sex pheromone of D. nipponica, based on compatibility of its GC-MS data with that of the extract of females, and its significantly high pheromone activity in a field bioassay. The field bioassay of the synthesized compounds also revealed that (1S,2R,SR)-1,2,8-trimethyldecyl propionate, (1S,2R,7S)-1,2,7-trimethyldecyl propionate, and (1S,2R,6S)-1,2,6-trimethyldecyl propionate could attract male sawflies to some extent as pheromone mimics.

Pheromone synthesis, CLXXIV: Synthesis of (5R,11S)-5,11-Dimethylheptadecane and (S)-2,5-Dimethylheptadecane, the major and the minor components of the sex pheromone of the geometrid moth, Lambdina fiscellaria lugubrosa

Mori, Kenji,Horikiri, Hiromasa

, p. 501 - 505 (2007/10/03)

(5R,11S)-5,11-Dimethylheptadecane (1), the major component of the female-produced sex pheromone of the western hemlock looper (Lambdina fiscellaria lugubrosa), was synthesized by starting from the enantiomers of methyl 3-hydroxy-2-methylpropanoate (3). (S)-2,5-Dimethylheptadecane (2), the minor and synergistic component of the pheromone, was also synthesized by starting from (S)-citronellol (4). VCH Verlagsgesellschaft mbH, 1996.

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